Bug 28386: Add history_notes

Bug 28386: Add history_notes

The "developer" lines of history.txt will be regenerated using the git
history so we need to add this as a separate info.
See the release_tools changes for more info

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
(cherry picked from commit d7a6bd08ba4288b9d203a33d4201c4d85477524c)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit d2a95e92a4e28d4a7e56cc84de9c1509e0ec2d9a)
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
(cherry picked from commit 0c347c42539db3478492dd40f56e9eec830a1544)
Signed-off-by: Wainui Witika-Park <wainuiwitikapark@catalyst.net.nz>
(cherry picked from commit 0c347c42539db3478492dd40f56e9eec830a1544)